CVE-2026-56230CWE-639

Capgo - Broken Object Level Authorization via x-limited-key-id Header

High · published June 30, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
39.6
In the wild
Unconfirmed
What it is

Capgo before 12.128.2 contains a broken object level authorization vulnerability in middlewareKey() that accepts the client-controlled x-limited-key-id header without validating ownership, allowing authenticated users to adopt cross-tenant limited keys. Attackers can supply another tenant's limited key ID to bypass authorization checks and access unauthorized cross-tenant resources across multiple API endpoints.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00469 · 39.6th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-06-30T22:08Z
EPSS history
Timeline
  • 30 JUN 22:08Z
    Capgo - Broken Object Level Authorization via x-limited-key-id Header
    cvelistv5